Finally, click "Trigger New Jobs" near the top right of your push.
NOTE: The outcome of your request will show up as a 'Sch' job ("Scheduling" request) or as an 'A' ("Action task") job depending if you requested Buildbot (old CI) or TaskCluster (new CI) jobs. [https://armenzg.blogspot.ca/2016/06/adding-new-jobs-to-treeherder-is-now.html Blog post]. In the logs you can see the outcome of your request. If there are any issues you will be able to file it with that information.
http://people.mozilla.org/~armenzg/sattap/034f72da.png
=== Scheduling jobs with Try Syntax ===